HDL

HDL may refer to one of the following:

• Hardware description language
• Handle System identifier (Hdl.handle.net)
• High-density lipoprotein, so-called "good cholesterol"
• Les Hurlements d'Léo, an alternative rock band from France.
• GE HDL diesel engine
• Huey, Dewey, and Louie, Disney-characters, nephews of Donald Duck
• HDL System is the HDL Universal Tactical role-playing game system produced by Tremorworks, LLC
• Huntington's disease-like syndromes, a family of genetic neurological diseases